Migrate to Zod v4

[peterpeterparker]

Motivation

We want to stay up-to-date with latest tooling to avoid being stuck with an issue or security problem.

Issues

We were looking to use zod@4 but, couldn't migrate, as third party dependencies are not yet compatible.

Namely:

• abitype which we are inehriting from WalletConnect
• jimp - which we use for e2e only. I opened an issue Migrate to Zod v4 jimp-dev/jimp#1387

Workaround

We stick to zod@>=3.25 which supports both v4 and v3. This way we can use latest pattern for our ecosystem and third party can use old patterns. Assuming there is not clashes between those.